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EWG's Tap Water Database — 2019 UPDATE

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Nitrate and nitrite

Sacramento Suburban Water District

Nitrate and nitrite enter water from fertilizer runoff, septic tanks and urban runoff. These contaminants can cause oxygen deprivation for infants and increase the risk of cancer. Nitrite is significantly more toxic than nitrate. Click here to read more about nitrate.

 

168

Samples

0

Samples exceeding legal limit (MCL)

155

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
20131.22 ppm4946ND - 5.00 ppm
20142.31 ppm4846ND - 7.60 ppm
2015N/A00N/A
20161.50 ppm3428ND - 6.30 ppm
20172.49 ppm3735ND - 7.30 ppm

ppm = parts per million

State and national drinking water standards and health guidelines

EWG Health Guideline 0.14 ppm

The health guideline of 0.14 parts per million, or ppm, for nitrate and nitrite is based on the equivalent health guideline for nitrate, as defined in a peer-reviewed scientific study by EWG. This guideline represents a one-in-one-million annual cancer risk level.

EPA Maximum Contaminant
Level (MCL) 10 ppm

ppm = parts per million

All test results

Date Lab ID Result
2013-01-105810-240-1140ND
2013-04-185810-016-14000.580 ppm
2013-05-165810-246-10151.30 ppm
2013-07-085810-075-11150.900 ppm
2013-07-085810-096-12000.580 ppm
2013-07-085810-098-09301.60 ppm
2013-07-085810-104-10151.10 ppm
2013-07-085810-105-10250.890 ppm
2013-07-085810-106-10352.90 ppm
2013-07-085810-144-09000.800 ppm
2013-07-115810-078-10450.650 ppm
2013-07-115810-085-13001.000 ppm
2013-07-115810-088-10150.710 ppm
2013-07-115810-107-09400.470 ppm
2013-07-115810-133-11100.520 ppm
2013-07-115810-146-11450.460 ppm
2013-07-165810-015-09451.000 ppm
2013-07-165810-061-09150.610 ppm
2013-07-165810-080-11001.10 ppm
2013-07-165810-082-10300.700 ppm
2013-07-165810-083-08301.60 ppm
2013-07-165810-101-11301.30 ppm
2013-07-165810-145-12000.490 ppm
2013-07-175810-135-13201.10 ppm
2013-07-245810-076-14402.00 ppm
2013-07-245810-077-11453.40 ppm
2013-07-245810-079-10200.870 ppm
2013-07-245810-081-10453.50 ppm
2013-07-245810-087-14100.460 ppm
2013-07-245810-089-12200.740 ppm
2013-07-245810-094-10000.840 ppm
2013-07-245810-102-13405.00 ppm
2013-07-255810-097-12500.970 ppm
2013-07-255810-130-12301.50 ppm
2013-07-255810-246-10500.990 ppm
2013-07-295810-092-0925ND
2013-07-295810-111-05251.30 ppm
2013-07-295810-127-12152.00 ppm
2013-07-295810-129-10352.10 ppm
2013-07-295810-136-13002.10 ppm
2013-07-295810-137-11302.10 ppm
2013-07-295810-142-09580.890 ppm
2013-08-055810-092-1155ND
2013-08-055810-129-10501.90 ppm
2013-08-055810-142-11200.860 ppm
2013-08-075810-240-12100.610 ppm
2013-09-265810-244-12551.50 ppm
2013-10-165810-246-10000.990 ppm
2013-11-135810-103-11200.830 ppm
2014-01-275810-246-10052.80 ppm
2014-04-295810-246-09302.10 ppm
2014-05-085810-244-10001.50 ppm
2014-06-195810-004-11050.700 ppm
2014-06-195810-061-09501.50 ppm
2014-06-195810-062-1000ND
2014-06-195810-064-11201.20 ppm
2014-07-015810-034-09205.50 ppm
2014-07-085810-015-10001.000 ppm
2014-07-085810-042-10302.60 ppm
2014-07-095810-007-13253.90 ppm
2014-07-095810-052-11301.60 ppm
2014-07-105810-033-11501.50 ppm
2014-07-155810-018-10307.20 ppm
2014-07-165810-035-11002.00 ppm
2014-07-165810-066-09150.950 ppm
2014-07-165810-074-11554.40 ppm
2014-07-175810-019-11504.30 ppm
2014-07-175810-051-11005.50 ppm
2014-07-175810-054-13003.00 ppm
2014-07-175810-071-10200.700 ppm
2014-07-235810-013-12301.10 ppm
2014-07-245810-020-13307.60 ppm
2014-07-245810-065-11150.750 ppm
2014-07-295810-032-11302.20 ppm
2014-08-215810-010-11151.40 ppm
2014-08-215810-012-12006.50 ppm
2014-08-215810-028-13452.20 ppm
2014-08-215810-069-10304.00 ppm
2014-08-215810-244-09451.60 ppm
2014-08-275810-017-10450.650 ppm
2014-08-285810-030-11302.00 ppm
2014-08-285810-073-09400.420 ppm
2014-09-045810-016-09300.580 ppm
2014-09-165810-021-12001.80 ppm
2014-09-165810-072-10452.20 ppm
2014-09-175810-056-10401.000 ppm
2014-09-175810-070-09402.80 ppm
2014-09-245810-001-09452.50 ppm
2014-09-245810-002-11203.80 ppm
2014-10-015810-029-10301.10 ppm
2014-10-015810-067-0945ND
2014-10-085810-022-09300.800 ppm
2014-10-085810-027-11203.80 ppm
2014-10-085810-055-10201.90 ppm
2014-10-095810-025-11450.950 ppm
2014-10-155810-244-09301.70 ppm
2014-12-105810-011-13151.80 ppm
2016-01-285810-081-10302.20 ppm
2016-02-085810-089-09500.660 ppm
2016-03-095810-097-09402.90 ppm
2016-06-235810-076-13452.00 ppm
2016-07-075810-080-09502.10 ppm
2016-07-075810-101-12005.80 ppm
2016-07-075810-104-10001.000 ppm
2016-07-075810-105-11300.760 ppm
2016-07-075810-244-11001.50 ppm
2016-07-125810-087-1210ND
2016-07-125810-094-10101.40 ppm
2016-07-125810-098-10001.20 ppm
2016-07-135810-085-13500.750 ppm
2016-07-135810-096-11300.860 ppm
2016-07-135810-111-11301.30 ppm
2016-07-135810-240-1140ND
2016-07-135810-246-09101.20 ppm
2016-07-145810-107-1115ND
2016-07-195810-078-14151.60 ppm
2016-07-195810-139-13450.930 ppm
2016-07-205810-092-1050ND
2016-07-205810-133-11000.400 ppm
2016-07-215810-082-12400.600 ppm
2016-08-095810-248-13580.640 ppm
2016-08-255810-075-10000.780 ppm
2016-08-255810-142-11150.870 ppm
2016-08-255810-144-10500.580 ppm
2016-08-255810-145-0925ND
2016-09-065810-102-13205.80 ppm
2016-09-135810-077-13156.30 ppm
2016-09-135810-083-12154.00 ppm
2016-09-285810-146-1250ND
2016-11-075810-135-10251.50 ppm
2016-11-141233-250-12001.20 ppm
2017-07-185810-002-11153.70 ppm
2017-09-059590-001-11001.90 ppm
2017-09-059590-062-0845ND
2017-09-079590-073-1345ND
2017-09-119590-022-11150.810 ppm
2017-09-119590-034-13305.70 ppm
2017-09-119590-051-11002.50 ppm
2017-09-119590-052-10001.80 ppm
2017-09-129590-010-09301.60 ppm
2017-09-129590-021-11152.00 ppm
2017-09-129590-042-12302.70 ppm
2017-09-129590-064-11450.940 ppm
2017-09-129590-066-10300.930 ppm
2017-09-129590-070-12002.80 ppm
2017-09-129590-072-13302.50 ppm
2017-09-129590-074-09102.90 ppm
2017-09-139590-054-13352.80 ppm
2017-09-139590-056-10451.000 ppm
2017-09-149590-011-09002.30 ppm
2017-09-149590-071-09450.760 ppm
2017-09-199590-015-13301.000 ppm
2017-09-199590-018-13006.80 ppm
2017-09-199590-020-09007.30 ppm
2017-09-199590-025-11201.000 ppm
2017-09-199590-032-11002.20 ppm
2017-09-219590-065-11451.20 ppm
2017-09-259590-019-10304.90 ppm
2017-09-269590-013-09001.30 ppm
2017-09-269590-030-11302.10 ppm
2017-09-269590-061-11000.910 ppm
2017-09-279590-007-12353.60 ppm
2017-09-279590-027-12004.00 ppm
2017-09-289590-035-09203.70 ppm
2017-09-289590-069-13152.90 ppm
2017-10-039590-029-09451.80 ppm
2017-12-129590-012-11406.10 ppm
2017-12-139590-055-13201.80 ppm